Watch case



FIG. 1 is a front, right side, bottom perspective view of a watch case showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is perspective view thereof, showing the watch case in an environment of use.

The broken lines show portions of the watch case that form no part of the claimed design. 

CLAIM The ornamental design for a watch case, as shown and described. 